Over the last few years, Venezuelans have suffered from the devastating impacts of a crumbling economy. Now severe drought has incapacitated its biggest hydroelectric plant, leading to daily blackouts. Earlier this month, the country mandated a three-day weekend as part of energy rationing. Now the situation has…

In 1995, the hydroelectric power plant on the shores of this Tasmanian lake went dark for the final time. It’s remained silent for 20 years since—until this year, when it re-opened with a radically different business model: A hotel.

Though hydroelectric dams accounted for nearly half of our renewable energy production in 2013, these structures have placed public utilities at odds with conservationists who argue that the dams unduly stress migrating fish during spawning season. That's where a robo-fish comes in

A team of researchers in South Korea have a pretty exciting new idea for hydroelectricity. They figured out a way to turn the mechanical energy from flowing water into a sustainable energy source. In other words, your toilet flushes could help power your home.

Sam Redfield of the Appropriate Infrastructure Development Group has designed a bucket-based hydroelectric generator that can be made with easily obtainable, affordable parts. The "pico generator" is intended to provide a modest power supply suitable for home lighting and small appliances to remote destinations.…